7. I
2
C Interface > Tsi574 as I
2
C Slave
157
Tsi574 User Manual
June 6, 2016
Integrated Device Technology
www.idt.com
3.
External device does an Alert Response request. Because ALERT_FLAG is asserted, the alert
response address is ACK’d and the Tsi574 slave address is returned.
I
2
C Sequence: <S><0001100><W><A><RD=SLVA+0><N><P>
Following the transaction, SLV_PA is 0x84 (unchanged from previous transaction) and interrupt
status SA_OK asserts. An optional interrupt can also be sent to the Interrupt Controller if enabled
in SA_OK of
. The ALERT_FLAG in
is cleared because of the successful response.
4.
External device writes all 4 bytes of the
to 0, reads
C Slave Access Status Register”
, then does another Alert Response request.
The ALERT_FLAG is zero (all enables were cleared), so the alert response address is NACKed.
I
2
C Sequence:
<S><SLVA><W><PA=0x84><A>
<WD=0x00><A><WD=0x00><A><WD=0x00><A><WD=0x00><A>
<R><SLVA><W><PA=0x20><A><R><SLVA><W><RD=0x00><N>
<R><0001100><W><N><P>
Following the transaction, SLV_PA is 0x21,
is
0x00000000 and interrupt status SA_OK asserts. An optional interrupt can also be sent to the
Interrupt Controller if enabled in SA_OK of
.
5.
C Internal Access Control Register”
to enable internal
register auto-incrementing.
I
2
C Sequence: <S><SLVA><W><PA=0x24><A><WD=0xAC><A><P>
Following the transaction, SLV_PA is 0x25,
is 0x000000AC and interrupt status SA_OK asserts. An optional interrupt can also be
sent to the Interrupt Controller if enabled in SA_OK of
.
Содержание IDT Tsi574
Страница 1: ...IDT Tsi574 Serial RapidIO Switch User Manual June 6 2016 Titl...
Страница 20: ...About this Document 20 Tsi574 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 34: ...1 Functional Overview JTAG Interface 34 Tsi574 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 100: ...4 Internal Switching Fabric Packet Queuing 100 Tsi574 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 224: ...11 Signals Pinlist and Ballmap 224 Tsi574 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 490: ...B Clocking P_CLK Programming 490 Tsi574 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 512: ...Index 512 Tsi574 User Manual June 6 2016 Integrated Device Technology www idt com...